Cal. Civ. Proc. Code § 340.11
(a)
(1) Notwithstanding Section 340.1, in an action for recovery of damages suffered as a result of childhood sexual assault that occurred before January 1, 2024, the time for commencement of the action shall be within 22 years of the date the plaintiff attains the age of majority or within five years of the date the plaintiff discovers or reasonably should have discovered that psychological injury or illness occurring after the age of majority was caused by the sexual assault, whichever period expires later, for any of the following actions:
(b)
(g) Certificates of merit shall be executed by the attorney for the plaintiff and by a licensed mental health practitioner selected by the plaintiff declaring, respectively, as follows:
(m) At any time after the action is filed, the plaintiff may apply to the court for permission to amend the complaint to substitute the name of the defendant or defendants for the fictitious designation, as follows: